Defined Benefit and Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2022

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures

For all plans, the components of net periodic benefit for the three months ended September 30, 2022, and 2021 are as follows:

	Pension				Postretirement
(in millions)	2022		2021		2022		2021
Service cost	$	1.7	$	1.6	$	—	$	0.1
Interest cost	6.9		5.2		0.2		0.2
Expected return on plan assets	(15.7)		(14.8)		—		—
Amortization of prior service cost	—		(0.1)		(0.3)		(0.3)
Amortization of net loss	3.3		6.5		—		—
Net periodic benefit	$	(3.8)	$	(1.6)	$	(0.1)	$	—

For all plans, the components of net periodic benefit for the nine months ended September 30, 2022, and 2021 are as follows:

	Pension				Postretirement
(in millions)	2022		2021		2022		2021
Service cost	$	4.3	$	4.7	$	0.1	$	0.3
Interest cost	17.4		15.7		0.5		0.5
Expected return on plan assets	(43.6)		(44.7)		—		—
Recognized curtailment gain	—		(0.6)		—		—
Amortization of prior service cost	(0.1)		(0.2)		(0.8)		(0.8)
Amortization of net loss	12.9		19.6		—		—
Net periodic benefit	$	(9.1)	$	(5.5)	$	(0.2)	$	—

Schedule of Contributions By Benefit Plan Type

We expect to contribute the following to our pension and postretirement plans:

(in millions)	Pension		Postretirement
Expected contributions in 2022	$	20.1	$	2.6
Amounts contributed during the nine months ended September 30, 2022	$	19.3	$	—